Brick-drier



C. H. KLEIN.

BRICK DRIER.

APPLICATION FILED JULY 21,1919.

Yaten Feb. 15 1921,

3SHEETSSHEET I.

Y 'B Inventor. 4 C/mr/@s M Weir? After/rays.

c. H. KLEIN.

BRICK DRIER.

APPLICATION FILED JULY 21, 1919.

' 3 Patented Feb. 15, 19211.. flii3j68,9%9 25 2 3 SHEETS-SHEET 2.

W I n A i'torngya CHARLES H. KLEIN, OF CHASKA, MINNESOTA.

BRICK-DRIER.

Specification of Letters Patent.

Patented Feb. 15-, 1921.

Application filed July 21, 1919. Serial No. 812,148.

To all whom it may concern: I

Be it known that 1, CHARLES H. KLEIN, a citizen of the United States, residing at Chaska, in the county of Carver and State of Minnesota, have invented a new and useful Improvement in Brick-Driers, of which .the following is a specification.

This invention relates to improvements 1I1 brick driers wherein bricks are dried in a more efiicient manner than heretofore. The primary object of this invention is to dry bricks evenly and quickly without crackin or checking and at a minimum of cost. 1? further object is to provide improved means of construction wherein drier cars loaded with undried bricks can be moved into and out of drying position and wherein an even distribution of the drying medium is maintained at all times and the moisture evaporated. With these and other objects in view my invention comprises features of construction and combinations of parts as Wlll be hereinafter fully described and claimed.

In the accompanying drawings forming part of this specification, Figure 1 is a plan of a portion of my improved drier, parts of the structure being broken away to more clearly expose the construction and the roof over the alleyways being in section, said section being on the line 1-1 of Fig. 3; Fig. 2 is a longitudinal section of a detail taken along one of the alleyways, on the line 22 of Fig. 1; Fig. 3 is a cross section of a detail the position of cross section being on the line 33 of Fig. 2; Fig. 4 is a perspective of a detail showing two portions of the wall plates out of which the hollow walls at the sides of the alleyways are constructed, and Fig. 5 is a longitudinal section of one of the alleyways showing an alternative construction.

My invention is preferably although not necessarily constructed with a number of alleyways although it will be understood that a single alleyway ma be employed when desired. In Fig. 1 I ave illustrated portions of three alleyways A, B, and G, on the floors of which are pairs of rails 10 on which cars D on carrier wheels 11 are movably mounted. Arranged at the opposite sides of each alleyway are hollow walls E of substantially even height extending upwardly a short distance above the height of the drier cars. Each of these hollow walls is mounted upon a built up foundation wall 12 which extends upwardly above the floor 14 of the foundation a distance substantially equal in height the lowermost pallet supportlng shelf rails 15 on the cars. The hollow walls E which are of any suitable length are connected with a transversely arranged feeder duct F as many of said feeder ducts being provided as desired and leading upwardly into the side walls. Said feeder duct .is connected with a blower G which is adapted to receive hot air from any suitable source such as a steam coil not illustrated or the waste hot klln or drying kilns. The drying cars are constructed with a suitable frame work 16 upon which oppositely disposed pairs of the pallet supporting shelf bars 15 are mounted, said shelf bars being arranged transversely of the trucks so that a series of pallets l7 loaded with bricks 18 lying on their sides, can be arranged in tiers one above the other on the truck with air spaces between and at the sides of the bricks thus forming superimposed shelves loaded with bricks on the car. The car is constructed of double form, that is, two distinct vertical series of shelves are provided adjacent each other the shelves of one series being substantially of even height and corresponding with the shelves of the other series. The sides of the cars closely adjoin the side walls of the alleyways when the cars-are moved into position in the alleyways for dryin the bricks. When the cars are moved into rying position each section of each car registers with a cooperating set of blower ducts 19, 20, 21 and 22. Each of these ducts is formed in elongated shape by slitting the thin metal out of which the walls are preferably constructed and bending the slit portions of the metal outwardly to form outwardly tapering sides 2-3. The size of the orifice between these sides is adjusted so that the supply of heating medium which is employed is evenly distributed throughout the entire structure of the drier. As a result the orifice resembles an elongated nozzle for directing the heating medium such as hot dry air across the cars. Referring to one section of the car the orifice in one wall is arranged at corresponding height to blow a current of heating medium across the space between the lowermost pair of shelves and pellets and between the bricks on said pallets whereas the orifice in the opposite wall is arranged at a step higher in height to blow the air back across the next superimposed pair of shelves and pallets immediately above the lowermost pair and the 3rd orifice air from a drying in height is arranged to blow the air back across the space between the 3rd pair of shelves and pallets and so on upwardly in a zig zag course alternately across the spaces between the shelves and pallets until the uppermost pallets are reached whereupon the drying medium egresses through the roof 24 over the alleyway, an exhaust passage 25 being provided for the egress of the moist heat- 1ng medium. During the upward course of the heating medium the moist air in the alleyway is gradually dried by the successlve currents or strata of fresh drying medium.

It is not necessary to employ the roof 24 as illustrated as I have constructed my invention without any roof and within a large inclosure over all of the alleyways from which the moist heating medium is free to egress or is drawn by an exhaust fan not illustrated from above, below or at an end of the alleyway. The thin metal walls may be constructed with tongue and groove joints 26 to facilitate assembling and fabricating the walls at a minimum of cost. Preferably the blower ducts in the walls of the alleyways are arranged in a zigzag manner in longitudinal pairs lengthwise of the alleyway. Thus there is a zig zag dlrection of draft vertically in the alleyway each current being adapted to blow across the space between a pair of shelves and augmenting the dryness of the drying medium. The lengths of the ducts 19, 20, 21 and 22 correspond, each being approximately the length of the shelves on a section of each car and the ducts are so arranged as to register with each tier of shelves on all of the cars in an alleyway when the cars are properly positioned, said cars being provided with spacing members 30 on their ends of proper length so that when all of the cars are assembled in an alley abutting each other they also correspond with the sets of drying medium ducts which are provided for them in the walls of the alley.

In addition to the drying medium walls which are provided for directing currents of drying medium across the cars, heating coils 31 supplied by the feeding pi e 32 may be provided on the floor 14 0 each alleyway for additionally heating the atmosphere in the alleyway and promoting upward circulation of the drying medium. This portion of the heating means may be dispensed with when desired without departing from the spirit of my invention. It will be understood that there is always an upward trend of the drying medium throughout eachentire alleyway, the spaces surrounding each truck permitting this action to transpire.

My invention will also operate successfully when the ports 37 and 38 are successively stepped upwardly longitudinally of the alley for each car as illustrated in Fig.

5, that is, when the car is constructed to hold a double stack of pallets.

In accordance with the patent statutes I have described the-principles of operation of my invention together with the apparatus which I now consider to re resent the best embodiment thereof, but desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. A drier, comprising, in combination, an alleyway having hollow side walls formed with air outlet ducts leading into said alleyway, a source of drying medium connected with said walls and adapted to project said drying medium through said ducts into said alleyway, a car movable into and out of said alleyway having a series of shelves upon which a series of superimposed pallets of bricks may be placed with spaces above and between said bricks, said ducts being ositioned so as to blow the drying me ium across said spaces back and forth alternately from bottom to top, the uppermost end of said alleyway exhausting the drying medium to the outer atmosphere.

2. A drier, comprising, in combination, an alleyway having hollow side walls formed with a substantially vertical series of ducts, the ducts in both of said walls being arranged in staggered position so as to blow drying medium in separate-strata alternately in opposite directions across the space between said walls and a car movable into and out of said alleyway having a series of superimposed shelves upon which pallets of bricks may be placed with spaces above andbetween said bricks, said ducts being arranged in spaced position so that the current of drying medium from a duct in one of said walls will blow across the space and between the bricks on one of said pallets while the next duct above in the opposite wall will blow across the space above the next superimposed pallet and a source of drying medium connected with both of said walls and adapted to force said drying medium back and forth across the spaces between all of said pallets and the bricks thereon and to finally exhaust out of said alleyway.

3. A drier, comprising, in combination, an alleyway having hollow side walls formed with a plurality of ducts connected with a suitable source of forced drying medium, a car movable into and out of said alleyway with its sides adjacent to but spaced from said side walls, said car having a tier of superimposed pallets spaced upwardly apart and adapted to hold pallets of spaced bricks dium across the spaces between the superim-.

posed pallets so that said drying medium is forced across the lowermost space between lets upwardly back and forth, whereby the said pallets thence across the space between a pair of pallets immediately above and so on back and forth across the spaces between said palletsfrom the bottom to the top of said car and finally exhausting outwardly above the car.

4. A .drier having hollow side walls connected with a suitable source of drying medium and formed with a plurality of ducts opening into said alleyway, a conveyer track leading longitudinally through the space between said side walls, a car movable into and out of said alleyway on said track, said car having superimposed pallets loaded with bricks spaced upwardly apart and fitting freely between said side walls, said ducts being arranged to blow the drying medium serially through the spaces between said paldrying medium passes upwardly between the bricks upon said pallets in a zigzag side walls, a plurality of cars movable into "-and out of said alleyway on said track, each of said cars having tiers of superimposed pallets car ing bricks to be dried spaced apart and walls, a suitable source of air drying medium connected with said walls, a 'blower for forcing said drying medium, said side walls being formed with duets with which said-source of drying medium is connected,

said ducts leading serially through the spaces between said pallets upwardly back and forth across each of said cars, whereby fresh drying medium is forced above and between bricks placed upon said pallets in.

a zig zag course in separate streams.

In testimony whereof, I have signed my I name to this specification.

a0 ttingfreely between said side 

